Area Code 240
Maryland consists of the red and blue areas. The red area indicates area codes 240 and 301
North American area codes 240 and 301 are State of Maryland telephone area codes which serve Maryland's portion of the Greater Washington, D.C. metro area, portions of southern Maryland, and all points northwest of Washington. This includes the communities of Cumberland, Frederick, Hagerstown, and Gaithersburg. Area code 301 was one of the original area codes established in 1947, and was the exclusive area code for the entire state of Maryland until it was split to form 410 on October 6, 1991. The overlay area code, 240, was introduced on June 1, 1997.
Counties served by these area codes include:
*Allegany
*Charles
*Frederick
*Garrett
*Howard
*Montgomery
*Prince George's
*St. Mary's
*Washington
Local calls require 10-digit dialing (area code + number, leading "1" is not required).
Area code 227 is scheduled to be overlaid with 301/240 some time in the near future to provide additional assignable numbers.
Numbers starting with 240
240-583 240-587 240-421 240-336 240-492 240-945 240-862 240-555 240-716 240-758 240-710 240-706 240-889 240-637 240-779 240-474 240-992 240-207 240-754 240-633 240-247 240-998 240-204 240-408 240-890 240-731 240-819 240-559 240-629 240-916 240-581 240-223 240-468 240-317 240-381 240-573 240-860 240-351 240-416 240-980 240-920 240-503 240-893 240-496 240-708 240-966 240-517 240-829 240-666 240-397 240-985 240-321 240-475 240-979 240-540 240-391 240-419 240-976 240-771 240-877 240-982 240-480 240-568 240-294 240-237 240-226 240-291 240-639 240-296 240-726 240-753 240-217 240-376 240-692 240-680 240-611 240-958 240-689 240-610 240-899 240-944 240-796 240-812 240-937 240-873 240-282 240-214 240-904 240-837 240-778 240-933 240-527 240-642 240-458 240-601 240-213 240-847 240-562 240-988 240-773 240-975 240-946 240-613 240-436 240-801 240-373 240-793 240-634 240-520 240-701 240-402 240-655 240-679 240-717 240-339 240-787 240-386 240-677 240-325 240-507 240-293 240-433 240-212 240-817 240-531 240-463 240-516 240-257 240-832 240-457 240-563 240-911 240-811 240-956 240-300 240-871 240-827 240-326 240-299 240-743 240-914 240-580 240-713 240-452 240-953 240-618 240-838 240-234 240-729 240-957 240-888 240-839 240-895 240-869 240-249 240-963 240-502 240-318 240-984 240-709 240-378 240-691 240-631 240-350 240-669 240-541 240-216 240-430 240-688 240-467 240-536 240-769 240-989 240-901 240-765 240-410 240-772 240-996 240-375 240-469 240-614 240-530 240-798 240-362 240-935 240-788 240-794 240-242 240-323 240-483 240-636 240-940 240-209 240-652 240-915 240-338 240-442 240-722 240-756 240-569 240-444 240-445 240-795 240-748 240-239 240-986 240-440 240-349 240-495 240-987 240-606 240-856 240-981 240-923 240-909 240-523 240-230 240-735 240-281 240-260 240-704 240-316 240-269 240-734 240-695 240-409 240-625 240-807 240-434 240-715 240-389 240-597 240-969 240-283 240-934 240-700 240-241 240-885 240-466 240-739 240-455 240-647 240-310 240-393 240-894 240-222 240-768 240-690 240-672 240-660 240-443 240-924 240-974 240-810 240-556 240-330 240-561 240-417 240-766 240-840 240-254 240-826 240-668 240-965 240-305 240-921 240-258 240-714 240-544 240-446 240-500 240-449 240-612 240-343 240-823 240-218 240-501 240-927 240-712 240-345 240-219 240-284 240-553 240-978 240-593 240-385 240-473 240-868 240-462 240-592 240-240 240-790 240-752 240-744 240-598 240-843 240-775 240-803 240-855 240-525 240-335 240-931 240-746 240-579 240-403 240-880 240-955 240-687 240-340 240-884 240-932 240-453 240-347 240-600 240-977 240-456 240-674 240-227 240-470 240-781 240-366 240-720 240-315 240-441 240-626 240-678 240-908 240-939 240-883 240-841 240-638 240-891 240-248 240-718 240-514 240-344 240-789 240-324 240-949 240-968 240-759 240-725 240-560 240-805 240-665 240-529 240-632 240-641 240-432 240-897 240-307 240-552 240-854 240-448 240-215 240-902 240-431 240-354 240-266 240-515 240-578 240-312 240-264 240-465 240-876 240-512 240-783 240-670 240-394 240-205 240-271 240-355 240-755 240-259 240-367 240-919 240-387 240-377 240-646 240-415 240-374 240-681 240-627 240-737 240-657 240-693 240-412 240-844 240-342 240-972 240-320 240-643 240-414 240-892 240-314 240-745 240-297 240-485 240-730 240-886 240-390 240-864 240-848 240-526 240-948 240-245 240-358 240-401 240-426 240-742 240-533 240-551 240-907 240-564 240-365 240-298 240-762 240-821 240-238 240-792 240-328 240-671 240-740 240-926 240-959 240-334 240-279 240-774 240-594 240-620 240-936 240-406 240-905 240-252 240-694 240-707 240-661 240-369 240-849 240-255 240-574 240-824 240-622 240-379 240-518 240-319 240-232 240-484 240-922 240-747 240-302 240-229 240-990 240-814 240-673 240-589 240-835 240-304 240-399 240-683 240-251 240-497 240-461 240-983 240-454 240-617 240-995 240-532 240-699 240-278 240-557 240-820 240-711 240-950 240-912 240-505 240-404 240-380 240-941 240-964 240-288 240-420 240-341 240-265 240-815 240-437 240-542 240-286 240-509 240-684 240-511 240-220 240-451 240-329 240-547 240-246 240-337 240-654 240-857 240-866 240-635 240-524 240-799 240-728 240-396 240-698 240-906 240-872 240-650 240-231 240-228 240-481 240-224 240-489 240-845 240-423 240-510 240-332 240-418 240-651 240-577 240-295 240-621 240-644 240-682 240-605 240-595 240-930 240-585 240-602 240-834 240-567 240-836 240-640 240-751 240-493 240-659 240-662 240-571 240-306 240-686 240-490 240-802 240-447 240-879 240-528 240-499 240-333 240-942 240-865 240-429 240-566 240-331 240-850 240-816 240-360 240-809 240-413 240-273 240-658 240-477 240-472 240-898 240-852 240-999 240-913 240-575 240-607 240-543 240-791 240-268 240-313 240-767 240-853 240-616 240-359 240-604 240-364 240-760 240-719 240-270 240-346 240-867 240-863 240-256 240-875 240-736 240-233 240-776 240-615 240-459 240-521 240-971 240-623 240-648 240-723 240-702 240-506 240-352 240-705 240-653 240-272 240-356 240-549 240-395 240-439 240-804 240-917 240-285 240-519 240-274 240-482 240-918 240-407 240-275 240-263 240-471 240-292 240-764 240-727 240-206 240-582 240-960 240-961 240-203 240-825 240-460 240-703 240-428 240-261 240-813 240-757 240-576 240-565 240-200 240-327 240-486 240-487 240-938 240-537 240-357 240-993 240-244 240-425 240-534 240-479 240-348 240-887 240-235 240-392 240-388 240-763 240-608 240-522 240-830 240-603 240-353 240-539 240-591 240-842 240-994 240-833 240-371 240-997 240-424 240-250 240-400 240-311 240-929 240-858 240-498 240-202 240-584 240-558 240-896 240-851 240-962 240-427 240-738 240-538 240-954 240-749 240-697 240-780 240-624 240-761 240-545 240-846 240-782 240-435 240-301 240-513 240-276 240-952 240-808 240-973 240-548 240-951 240-619 240-822 240-770 240-859 240-450 240-882 240-267 240-721 240-785 240-806 240-368 240-910 240-733 240-211 240-881 240-943 240-236 240-750 240-599 240-649 240-508 240-464 240-550 240-382 240-861 240-398 240-488 240-784 240-287 240-476 240-504 240-628 240-656 240-870 240-290 240-478 240-777 240-280 240-828 240-372 240-947 240-322 240-663 240-253 240-741 240-210 240-967 240-438 240-243 240-201 240-928 240-797 240-675 240-221 240-732 240-667 240-903 240-289 240-494 240-900 240-685 240-411 240-262 240-724 240-405 240-422 240-535 240-970 240-225 240-925 240-546 240-630 240-664 240-590 240-384 240-588 240-645 240-596 240-874 240-676 240-363 240-696 240-554 240-208 240-609 240-786 240-831 240-991 240-308 240-878 240-800 240-570 240-818 240-586 240-303 240-491 240-572 240-277 240-361 240-309 240-383 240-370